Hi Antonio,
On Wed, 13 Sep 2006, Antonio Petrella wrote:
> Hi Heiko,
>
> Heiko Lacker ha scritto:
> > Hi,
> >
> > to finalize the S/P fixing study we need:
> >
> > 1. Considering better fitting functions to describe the S/P functional
> > dependence, e.g. a Gaussian fit and determine the systematic
> > uncertainty
> > Antonio, what is your estimate: Can we do this until Friday?
> >
> Yes, I will let it work by Friday.
OK.
>
> > 2. Do this also on higher purity cuts. Time estimate for that?
>
> once it works it's only a matter of job submission with different cuts.
> I need to know: do we want to produce these numbers for the all
> reweighting schema (that is: use Wolfgang's latest tag and also the
> numbers on D** computed by Chukwudi)? In this case, before fitting the
> S/P ratio with a gaussian I have to re-dump weighted dataset and
> recompute the S/P ratio itself.
I think we should not double the work. We have seen that
the D**-ratio changes by the run-wise MC-reweighting
so I propose to aim for a final all-reweighting result.
Ciao,
Heiko
> ciao
> Antonio
>
> > 3. Apply all reweightings
> > * Chukwudi has produced with the correct run-wise MC
> > reweighting new numbers for D**lnu/(Dlnu+D*lnu)
> > If I interprete the numbers correctly, it is now
> > O(0.65) instead of 0.55.
> >
> > * We need to incorporate in the full reweighting also
> > the run-wise MC reweighting using Wolfgang's VVF tag.
> >
> > Chukwudi & Antonio: What is your time estimate for that?
> >
> > Beginning of next week would great since we need to
> > document it until the end of next week!
> >
> > 4. Wolfgang: I know that you will not read this before next
> > week but are you able to continue on the fallback
> > solution next week (18.9.-22.9.)?
> >
> > * The study on the MC would be very helpful.
> > * In addition, the fits on data should be repeated with
> > all reweightings applied.
> > * If we could also make a comparison of the signal yields
> > bin-by-bin between the fallback solution and the (S/P)
> > fixing strategy for equal purity cuts that would give
> > us also more confidence in case of agreement.
> >
> >
> > Cheers,
> > Heiko
> >
>
|